Vulnerability Details : CVE-2012-0021

The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.
Published 2012-01-28 04:05:01
Updated 2021-06-06 11:15:17
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Input validationDenial of service

Threat overview for CVE-2012-0021

Top countries where our scanners detected CVE-2012-0021
Top open port discovered on systems with this issue 80
IPs affected by CVE-2012-0021 41,002
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2012-0021!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2012-0021

Probability of exploitation activity in the next 30 days: 92.39%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 99 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2012-0021

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
2.6
 LOW AV:N/AC:H/Au:N/C:N/I:N/A:P
4.9
2.9
 NIST

CWE ids for CVE-2012-0021

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2012-0021

Products affected by CVE-2012-0021

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